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Finding the Fourth Proportional to 113,086.80, 169,630.20 and 71,096.40

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Solution

The fourth proportional to 113,086.80, 169,630.20 and 71,096.40 is: 106,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,086.80 : 169,630.20 = 71,096.40 : x
  2. Step 2: Convert to fraction form
    113,086.80/169,630.20 = 71,096.40/x
  3. Step 3: Cross multiply
    113,086.80x = 169,630.20 × 71,096.40
  4. Step 4: Simplify right side
    113,086.80x = 12,060,096,551.28
  5. Step 5: Solve for x
    x = 12,060,096,551.28/113,086.80
  6. Step 6: Final answer
    x = 106,644.60

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